Peter Liscovius

Questions: Which Mysql versions? Which table types? How many tables, how many relations? What are the Mysql vars? See something like http://example.com/adminer/?username=YOURUSERNAME&variables= On what distribution does it run? No issue here with fresh vagrant installs of Debian10(MariaDB-10.3.15) or Opensuse15.1(MariaDB-10.2.22) When you search the internet for 'slow information_schema query' some interesting topics on stackoverflow pop up. Probably related commits between 4.7.1 and 4.7.2: https://github.com/vrana/adminer/commit/36ade4e1974714c4042f313bae69ad3847764bcf...

Which database type? Is it with all database types or just one database type? How many tables has your database? What types are in your table? Which Adminer plugins are enabled (blob/image viewing plugins) ? Does the problem exists also with the github dev version (multiple files, no jsshrink minification or jush)? I use only the github sources and no speed problem with a few tables aside from some Firefox warnings in the developer console.

More then 1000 schemas??? In case you meant 1000 tables: This might be related to bug #687 too, but is a server side limit. The default max_input_vars of PHP is 1000, see https://www.php.net/manual/en/info.configuration.php . The Adminer 4.7.2 export has 1 (for tablename) up to 2 (when has data) checkboxes for each table. Together with the other form vars this means the limit is below 500 tables when max_input_vars is 1000. Further it does the export in my case, but just ends when the limit is reached....

More then 1000 schemas??? In case you meant 1000 tables: This might be related to bug #687 too, but is a server side limit. The default max_input_vars of PHP is 1000, see https://www.php.net/manual/en/info.configuration.php . The Adminer 4.7.2 export has 1 (for tablename) up to 2 (when has data) checkboxes for each table. Together with the other form vars this means the limit is below 500 tables when max_input_vars is 1000. Further it does the export in my case, but just ends when the limit is reached....

and later

[SQLite3] unrelated problem might prevents table rename

The create_database() function for Oracle drivers/oracle.inc.php just does not exist yet. Currently only 6 of 10 drivers have this function. Missing for: clickhouse, firebird, oracle, simpledb

default php max_input_vars limit reached too fast